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4,462 results for “South America”
Figure 4 from: Morales EA, Wetzel CE, Ector L (2021) New and poorly known araphid diatom species (Bacillariophyta) from regions near Lake Titicaca, South America and a discussion on the continued use of morphological characters in araphid diatom taxonomy. PhytoKeys 187: 23-70. https://doi.org/10.3897/phytokeys.187.73338
Figure 4 A–F SEM images of Pseudostaurosira aedes sp. nov. from the Bolivian Altiplano A top, tilted view of valve showing axial area, slightly raised virga, valve face areolae covered with bilobed or disk-like flaps, and slightly larger valve mantle areola covered with two or more flaps B, D, E, F girdle views showing features of the valve mantle, open girdle elements with larger valvocopula (white arrows in D and E). Notice serrate spines with well-developed stipules in F which have varying patterns C inner view showing reduced apical pore field (black arrow) and single depression into which the areolae open internally (dotted arrow). Scale bars: 4 µm (D); 5 µm (A–C, E, F).
Figure 7 from: Morales EA, Wetzel CE, Ector L (2021) New and poorly known araphid diatom species (Bacillariophyta) from regions near Lake Titicaca, South America and a discussion on the continued use of morphological characters in araphid diatom taxonomy. PhytoKeys 187: 23-70. https://doi.org/10.3897/phytokeys.187.73338
Figure 7 A–F SEM images of Pseudostaurosira vulpina sp. nov. A, B valve views showing striation pattern, features of the axial area, spine position and presence of depressed apical pore fields (black arrows) C, D close-ups with details of apical pore fields areolae and spines E tilted view of a frustule showing open girdle bands with overlapping extremes (white arrows) F internal view showing apical pore fields and the internal disk-like areolar depositions. Scale bars: 2 µm (C, D); 5 µm (A, B, E, F).
Figure 9 from: Morales EA, Wetzel CE, Ector L (2021) New and poorly known araphid diatom species (Bacillariophyta) from regions near Lake Titicaca, South America and a discussion on the continued use of morphological characters in araphid diatom taxonomy. PhytoKeys 187: 23-70. https://doi.org/10.3897/phytokeys.187.73338
Figure 9 A–F SEM images of Pseudostaurosira occulta sp. nov. A, B external views of valves showing apical pore fields (black arrow in A) and other features C internal view of valve showing depressions containing the striae (dashed arrow) D internal close-up showing apical pore field depression (black arrow) and striae depression (dashed line) E close-up on valve apex showing flaps on apical pore field (black arrow) and open girdle element (white arrow) F close-up on cell-cell connection showing apical pore field covered with flaps (black arrow) and open girdle element (white arrow). Scale bars: 2 µm (D, E); 3 µm (F); 5 µm (A–C).
Figure 6 from: Morales EA, Wetzel CE, Ector L (2021) New and poorly known araphid diatom species (Bacillariophyta) from regions near Lake Titicaca, South America and a discussion on the continued use of morphological characters in araphid diatom taxonomy. PhytoKeys 187: 23-70. https://doi.org/10.3897/phytokeys.187.73338
Figure 6 A–V LM images of little known and new "araphid" diatoms from the Bolivian Altiplano A–DPseudostaurosira vulpina stat. nov. E–IP. frankenae sp. nov. (Fig. 6E is the holotype) J–OP. occulta sp. nov. (Fig. 6K corresponds to the holotype) P–VP. oblonga sp. nov. (Fig. 6R corresponds to the holotype). Scale bar: 10 µm.
FIG. 1 in Acanthocephala, including the descriptions of two new species of Mediorhynchus (Gigantorhynchidae) from birds from Paraguay, South America
FIG. 1 Mediorhynchus sp. Male. Scale bar: 1 mm.
Genomic selection signatures in farmed Colossoma macropomum from tropical and subtropical regions in South America
<p>Tambaqui or cachama (<i>Colossoma macropomum</i>) is one of the most important neotropical freshwater fish used for aquaculture in South America, and its production is concentrated at low latitudes (close to the Equator, 0°), where the water temperature is warm. Therefore, understanding how selection shapes genetic variations and structure in farmed populations is of paramount importance in evolutionary biology. High-throughput sequencing to generate genome-wide data for fish species allows for elucidating the genomic basis of adaptation to local or farmed conditions and uncovering genes that control the phenotypes of interest. The present study aimed to detect genomic selection signatures and analyze the genetic variability in farmed populations of tambaqui in South America using single-nucleotide polymorphism (SNP) markers obtained with double-digest restriction site-associated DNA sequencing. Initially, 199 samples of tambaqui farmed populations from different locations (located in Brazil, Colombia, and Peru), a wild population (Amazon River, Brazil), and the base population of a breeding program (Aquaculture Center, CAUNESP, Jaboticabal, SP, Brazil) were genotyped. Observed and expected heterozygosity was 0.231–0.350 and 0.288–0.360, respectively. Significant genetic differentiation was observed using global F<sub>ST</sub> analyses of SNP loci (F<sub>ST</sub> = 0.064, p < 0.050). Farmed populations from Colombia and Peru that differentiated from the Brazilian populations formed distinct groups. Several regions, particularly those harboring the genes of significance to aquaculture, were identified to be under positive selection, suggesting local adaptation to stress under different farming conditions and management practices. Studies aimed at improving the knowledge of genomics of tambaqui farmed populations are essential for aquaculture to gain deeper insights into the evolutionary history of these fish and provide resources for the establishment of breeding programs.</p>
Figure 5 from: Clark JL, Clavijo L (2022) Two new species of Drymonia (Gesneriaceae) from Northwestern South America, including the discovery of the longest flower known in the genus. PhytoKeys 190: 1-14. https://doi.org/10.3897/phytokeys.190.72740
Figure 5 Drymonia peponifera J.L.Clark & Clavijo A habit B upper view of mature fruit C lateral view of immature calyx lobes D lateral view of axillary inflorescence with a single mature flower (A–D from J.L. Clark & L. Jost 6957). Photos by J.L. Clark.
Figure 1 from: Clark JL, Clavijo L (2022) Two new species of Drymonia (Gesneriaceae) from Northwestern South America, including the discovery of the longest flower known in the genus. PhytoKeys 190: 1-14. https://doi.org/10.3897/phytokeys.190.72740
Figure 1 Drymonia intermedia Clavijo & J.L.Clark A holotype specimen B upper view of mature fruit C front view of corolla D lateral view of flower (A holotype (SEL) of J.L. Clark et al. 10343B from J.L. Clark et al. 7148C, D from J.L. Clark et al. 10344). Photos by J.L. Clark.
Figure 4 from: Clark JL, Clavijo L (2022) Two new species of Drymonia (Gesneriaceae) from Northwestern South America, including the discovery of the longest flower known in the genus. PhytoKeys 190: 1-14. https://doi.org/10.3897/phytokeys.190.72740
Figure 4 Drymonia longiflora J.L.Clark & Clavijo A erect subwoody habit B mature calyx lobes C front view of corolla D lateral view of flower (A from J.L. Clark et al. 7196B from J.L. Clark et al. 13417C, D from J.L. Clark et al. 10343). Photos by J.L. Clark.
Figure 2 from: Clark JL, Clavijo L (2022) Two new species of Drymonia (Gesneriaceae) from Northwestern South America, including the discovery of the longest flower known in the genus. PhytoKeys 190: 1-14. https://doi.org/10.3897/phytokeys.190.72740
Figure 2 Drymonia laciniosa Wiehler A dorsiventral habit B immature cone-shaped fruit C front view of flower D lateral view of flower (A from J.L. Clark 1630B from J.L. Clark et al. 9629C from J.L. Clark et al. 10117D from J.L. Clark et al. 12123). Photos by J.L. Clark.
Figure 3 from: Clark JL, Clavijo L (2022) Two new species of Drymonia (Gesneriaceae) from Northwestern South America, including the discovery of the longest flower known in the genus. PhytoKeys 190: 1-14. https://doi.org/10.3897/phytokeys.190.72740
Figure 3 Drymonia macrophylla (Oerst.) H.E.Moore A erect subwoody habit B mature fleshy bivalved capsule C front view of corolla D lateral view of flower (A from P. Pedraza et al. 850B from J.L. Clark et al. 12119C, D from J.L. Clark et al. 10044). Photo A by P. Pedraza and photos B–D by J.L. Clark.
Supplementary material 1 from: Nobis M, Klichowska E, Wolanin M, Nobis A, Nowak A (2022) Typification of five plant names described based on specimens collected by Józef Warszewicz in Central and South America. PhytoKeys 192: 45-61. https://doi.org/10.3897/phytokeys.192.78409
Table S1
• South-east Asia, North, Central, and South America. in Mephitidae
• South-east Asia, North, Central, and South America.
FIGURES 15–16. Rhodobaenus tenorio. 15 in New species of Rhodobaenus LeConte, 1876 (Coleoptera: Curculionidae: Dryophthorinae) from Central and South America
FIGURES 15–16. Rhodobaenus tenorio. 15, Dorsal habitus, male. 16, Lateral habitus, male.
• North, Central, and South America. in Procyonidae
• North, Central, and South America.
FIGURE 20 in First record of Glabellula Bezzi (Diptera, Mythicomyiidae: Glabellulinae) in South America, with description of three new species from Brazil
FIGURE 20. Geographical records of new species of Glabellula known from Brazil.
FIGURE 3 in A new species of Orthobula Simon, 1897 (Araneae: Trachelidae) from South America
FIGURE 3. Distribution of Orthobula sudamericana sp. nov. (white circles) in South America.
Fig. 5 in A new species of Acantholeberis (Crustacea, Branchiopoda) suggests an ancient geographic distribution of the genus in South America
Fig. 5. Acantholeberis accolismaris Sousa, Elmoor-Loureiro & Álvarez-Silva sp. nov., parthenogenetic female from Jurubatiba National Park.A. Habitus.B. Head.C. Antennule.D–H. Antennule ornamentation (arrows show teeth organized in groups). I. Antenna. J–K. Antenna in lateral view, showing its base and first exopodite segment. L–O. Antennal setae. P–Q. Maxilla (arrow shows the short crown-like seta). Scale bars: A–B, I = 100 µm; C–H, J–Q = 10 µm.
Fig. 3 in A new species of Acantholeberis (Crustacea, Branchiopoda) suggests an ancient geographic distribution of the genus in South America
Fig. 3. Acantholeberis accolismaris Sousa, Elmoor-Loureiro & Álvarez-Silva sp. nov., parthenogenetic female from the Planície Costeira, Rio Grande do Sul (FDRS0696). A. First limb. B. Idem, endites and stiff setae. C. Idem, morphology of stiff setae of endites. D. Inner distal lobe and outer distal lobe. E. Second limb. F. Idem, gnathobase. G. Idem, comparative system of proportion of scrapers, white circles represent A. smirnovi Paggi & Herrera-Martinez, 2020 and black circles represent A. accolismaris sp. nov. H. Third limb. I–J. Idem, distal endite, arrow indicating the posterior seta. K. Idem, ganathobase. L. Fourth limb. M. Idem, seta 1 of distal endite. N. Fifth limb. O. Idem, inner lobe. P. Sixth limb.
Fig. 14 in The genus Milnesium (Eutardigrada, Apochela, Milnesiidae) in Argentina: description of three new species and key to the species of South America
Fig. 14. Milnesium irenae sp. nov., paratype, ♀ (slide No. UNLPam 1430-1). View under UV fluorescence microscope, showing various pseudoplates. Scale bar = 50 µm.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.